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A favorite easy weeknight dinner, this Roasted Pork Tenderloin is rubbed with herbs and spices, seared in a cast-iron skillet and roasted in the oven with flavorful citrus juices. (low-carb, gluten free, paleo)

Roasted pork tenderloin in black cast iron skillet garnished with chopped cilantro.

Roasted pork tenderloin has always been a weeknight staple in my house. It’s a budget-friendly and inexpensive cut of meat that’s lean and super easy to make!

This recipe requires no marinating which is perfect for those weeks where you’re super busy and forget to plan ahead. (aka most days in my house)

Instead, we’re using a simple dried rub of my favorite herbs and spices, searing the pork to create some beautiful caramelization on the outside, and then finishing it off in the oven with some squeezed oranges and lemons to create a beautiful citrus juice glaze. So good!

Pork tenderloin recipe ingredients

For this recipe, you’ll need 2 pork tenderloins that weigh a total of about 2 1/2 pounds. Most grocery stores sell them in packs of 2, which is perfect for this recipe.

You’ll also need a few herbs and spices to create an easy dry rub. Simply add chili powder, kosher salt, smoked paprika, dried thyme, ground cumin, crushed red pepper flakes and onion powder in a small bowl and mix to combine.

Last but definitely not least, you’ll need some cooking oil and 2 types of citrus fruits – an orange and a lemon.

Dry rub for baked pork tenderloin in a small bowl.

Before you get cooking, make sure to pat the tenderloins completely dry with paper towels. Then season them on all sides with the dry rub.

How to cook pork tenderloin

Step 1: Heat a large cast iron skillet or Dutch oven over medium-high heat. Add in oil to coat the bottom of the pan and then add the seasoned pork tenderloins.

Step by step process of how to cook pork tenderloin.

Step 2: Sear the pork for about 1 1/2 minutes per side, until every side has a good sear on it.

Step 3: Remove the skillet from the heat and squeeze in the juice of one orange and one lemon. Add the fruit rinds to the skillet and bake everything in 375ยฐF oven for 20-25 minutes, or until the internal temperature of the pork reaches 140ยฐF.

Step by step process of how to cook pork tenderloin.

Step 4: Transfer the pork to a cutting board and let it rest for 5 minutes. Slice and serve immediately with the juices from the skillet.

Tips for making the best pork tenderloin

Get a good sear. Make sure your skillet is hot before adding the pork. This will help create that beautiful and delicious caramelization on the outside that creates a ton of flavor!

Use a meat thermometer to check the internal temperature of the pork. Not only will this help you determine if the pork is underdone, but it will also help you make sure it’s not overcooked! Here’s my favorite in-oven meat thermometer.

Let it rest. After removing the pork from the oven, transfer it to cutting board and let it rest for 5 minutes. This will help redistribute and lock in all the moisture so that when you go to slice it, the juices don’t run out.

A spoon pouring pork tenderloin oven juices from a black cast iron skillet.

What to serve with roasted pork tenderloin

To turn this tenderloin into a full meal, here are a few of my favorite side dishes to serve with it:

4.54 from 28 votes

Roasted Pork Tenderloin

This Roasted Pork Tenderloin is rubbed with herbs and spices, seared in a cast-iron skillet and roasted in the oven with oranges and lemon to keep it juicy!
Prep: 8 minutes
Cook: 27 minutes
Total: 40 minutes
Servings: 8 servings
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Ingredients 

Instructions 

  • In a small bowl, add chili powder, salt, smoked paprika, thyme, cumin, red pepper flakes and onion powder. Mix together until combined.
  • Pat the pork tenderloins with paper towels until completely dry. Sprinkle the spice mixture all over the tenderloins and rub it in using your hands.
  • Preheat oven to 375ยฐF. Heat a large oven-safe skillet or pan (a cast-iron skillet or dutch oven are best) over medium-high heat. Add the olive oil followed by the seasoned pork. Sear the pork on all sides, about 1 1/2 minutes per side.
  • Remove the skillet from the heat and squeeze the juice of the orange quarters and lemon halves into the skillet. Place the squeezed oranges and lemons into the skillet and bake in the oven for 20-25 minutes, or until the internal temperature of the meat reaches 140ยฐF. (I highly recommend using an in-oven meat thermometer to make sure you don't overcook the pork.)
  • Remove the skillet from the oven and transfer the pork tenderloins to a cutting board. Let the pork rest for 5 minutes. The pork will continue cooking a little bit during this time and the internal temperature of the meat will reach 145ยฐF.
  • Slice and serve with the juices from the skillet and a garnish of chopped cilantro or parsley.

Notes

  • Get a good sear.ย Make sure your skillet is hot before adding the pork. This will help create that beautiful and delicious caramelization on the outside that creates a ton of flavor!
  • Use a meat thermometer to check the internal temperature of the pork.ย Not only will this help you determine if the pork is underdone, but it will also help you make sure itโ€™s not overcooked! Hereโ€™s my favoriteย in-oven meat thermometer.
  • Let it rest.ย After removing the pork from the oven, transfer it to cutting board and let it rest for 5 minutes. This will help redistribute and lock in all the moisture so that when you go to slice it, the juices donโ€™t run out.

Nutrition

Serving: 1/8th of recipe | Calories: 205kcal | Carbohydrates: 3g | Protein: 29g | Fat: 9g | Saturated Fat: 2g | Polyunsaturated Fat: 0g | Monounsaturated Fat: 0g | Trans Fat: 0g | Cholesterol: 88mg | Sodium: 403mg | Potassium: 54mg | Fiber: 1g | Sugar: 1g | Vitamin A: 300IU | Vitamin C: 10.7mg | Calcium: 10mg | Iron: 4mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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15 Comments

  1. JBarillas says:

    5 stars
    This was so good! My family loved it! Fantastic flavor, even without marinating. This will become one of my favorite recipes!

  2. Britnie says:

    5 stars
    I took liberties with my seasonings but I’ve gotta say your cooking directions were excellent! I’ve had a hard time cooking tenderloin but I followed your directions exactly and it came out fantastic! Even microwaved leftovers for next days lunch were juicy!

  3. Carol N says:

    Made this for a girls night – and it got raves! The pork was so juicy and flavorful!

    1. Isabel says:

      I’m so happy you loved it, Carol! Thanks so much for the review!